<!DOCTYPE html>
<html>
<head>
    <title>Form Submission</title>
</head>
<body>
    <form action="/login" method="POST">
        <label>用户名:</label>
        <input type="text" name="username" required><br>
        <label>密 码:</label>
        <input type="password" name="password" required><br>
        <button type="submit">提交</button>
    </form>
</body>
</html>
